Packing for tubes of surface condensers.



W. 'Q'UINT. IPAGKING FOR TUBES OF SURFACE GONDENSERS. APPLICATION FILED MA! 22,1903.

937,547, Patented 0011.19,.1909.

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W. QUINT. PACKING FOR TUBES OF SURFACE GONDENSERS. APPLICATION FILED MAY 22,1908.

937,547. Patented Oct. 19, 1909.

2 SHEETS-SHEET 2.

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W1 I azm/ wILLY QUINT, or WILMERSDORF, NEAR BERLIN, GERMANY.

PACKING FOR TUBES OF SURFACE CONDENSERS.

Specification of Letters Patent.

Patented Oct. 19, 1909.

Application filed. May 22, 1908. Serial No. 434,318.

To all whom it may concern:

Be it known that I, VVILLY QUINT, a subject of the King of Prussia, German Emperor, and residing at /Vilmersdorf, near Berlin, in the Kingdom of Prussia, German Empire, have invented certain new and useful Improvements in India-Rubber Packings for the Tubes of Surface Condensers and Similar Tubular Apparatus, of which the following is a specification.

The employment of india -rubber as a packing-means for the tubes of surface-condensers and similar tubular apparatus is known, as is also the coaction of the excess of the atmospheric pressure with respect to the vacuum in the condenser. Up to now, two forms of this packing have been known. There is first an older form, in which the castiron frontal walls of the condenser have annular projections surrounding the holes through which the ends of the con denser-tubes extend beyond said annular projections. Cooperating with each annular projection and the respective tube-end is a piece of india-rubber hose drawn over the said parts and forming the packing so as to prevent the entrance of atmospheric air into the condenser at the junction of the tubewalls and tubes. There are thus in this form of construction two pieces of india-rubber hose for each tube, one at each end, and every piece may be replaced by a fresh one, which is an advantage of this form of construction. But this advantage is offset by the disadvantage that the tube-walls with their numerous annular projections are difficult of manufacture, and further-more said projections entail comparatively large spaces between the tubes inside the condenser. These two disadvantages are not to be found in the second of the two known forms of construction, because with this the tube-walls remain perfectly flat or plane," and the tubeends projecting above the outer surface of this wall are packed by means of an indiarubber plate common to them all and having perforations for the tubes. But in fact there is also disadvantage likely to olfset the advantage to be found in the substitution of a common packing-plate for a large number of separate packings because in the case of the packing-plate becoming loose at one tube, the whole india-rubber plate must be replaced by a fresh one although it is perfectly sound at all the other tubes of the respective group.

There are thus advantages and disadvanl tages in either form of construction, and it is the object of my invention to combine the advantage of the two forms, and avoid at the same time the disadvantages of the same.

My invention is illustrated in the accompanying drawings, in which Figure 1 shows a portion of a tube wall of a tubular apparatus, and two pieces of tubes, one in longitudinal section, the other in elevation, the whole being furnished with my improved packing; and Fig. 2 is a similar view, showing a somewhat modified form of construction.

The principle embodied in these two forms of my, improved packing is the same. In either case the tube walls are provided with separate annular projections which project over the surface or plane of the tube-wall in exactly the'same manner as did the castiron annular projections that were cast in one piece with the tube-wall, the difference being only that in my invention the-annularprojections are not cast in one piece with the wall. But, still, they may hang together, 2'. e. be formed of one piece of material, particularly sheet-metal. This construction is shown in Fig. 1, in which a is a portion of a tube-wall of a tubular apparatus, for instance of a surface-condenser. This tubewall is perfectly fiat, that is to say, it has no annular projections cast in one piece with the wall. But there are annular projections 12 formed out of a sheet-metal plate 6 arranged in front, or at the outside, of the wall a. These projections form substitutes for those cast in one piece with the wall, the casting of which is very difficult, which difficulty is thusavoided, and the spaces occupied formerly by the cast projections are saved and can usefully be employed for increasing the number of tubes in a given area of surface. The tubes 0 project over the projections 6 and pieces 0Z of india-rubber hose take over the ends 0 of the tubes 0, as well as over the projections 5, just as they did in the old form. But in my improved construction the single or separate packings, of india-rubber hose, instead of a perforated india-rubber plate, are used in connection with a flat or plane tube-wall, such as a. All this is true also with respect to the somewhat modified form of construction shown in Fig. 2. The only difference with respect to Fig. 1 is, that the annular projections 72 are not united with each other but are formed by separate pieces of tube 7), each of which is fixed in a hole of the tubewall, the holes being so much wider, or larger in diameter, that the tubes 0 can be of the same size as in the case first-described. There is in this second case the advantage with respect to the first, that the india-rubber pieces d which take around the tubeends 0 with the same tension as in the first case, take around the projections 16 with a comparatively stronger tension because of the larger circumference of the ends of the pieces of tube 6. c

Having now described my invention what I desire to secure by a patent of the United States is:

1. In a tubular apparatus having pieces of india-rubber hose taking over the projecting ends of the tubes and forming packings for the same, the combination, with said tubes and packings of completely fiat tube-walls, and annular projections formed separately with respect to said tube-walls and arranged so as to correspond in position to the tubeholes of said walls; said pieces of hose taking also over said annular projections, for the purpose as described.

2. In a tubular apparatus having tubewalls, tubes projecting over said walls, and pieces of india-rubber hose taking over the projecting ends of said tubes and forming packings for the same at said Walls; the combination with said tubes and packings, of completely flat tube-walls, and annular projections formed separately with respect to said tube-walls and forming substitutes for integrally formed projections and arranged so as to correspond in position to the tube-holes of said walls, for the purpose as described.

3. In a tubular apparatus having completely fiat tube-walls, tubes projecting over said walls, and pieces of india-rubber hose taking over the projecting ends of said tubes and forming packings for the same at said walls; the combination with said tubes and packings, of annular projections formed separately with respect to said tube walls and being integrally connected with each other, said annular projections forming substitutes for projections formed integrally with the tube-wall, the latter being left flat, for the purpose as described.

Tn witness whereof I have hereunto set my hand in presence of two witnesses.

VVILLY QUINT.

Witnesses VOLDEMAR HAUPT, HENRY HAsrER. 

